Home / 113,919.12-157,200.72-68,588.40

Finding the Fourth Proportional to 113,919.12, 157,200.72 and 68,588.40

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Solution

The fourth proportional to 113,919.12, 157,200.72 and 68,588.40 is: 94,647.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,919.12 : 157,200.72 = 68,588.40 : x
  2. Step 2: Convert to fraction form
    113,919.12/157,200.72 = 68,588.40/x
  3. Step 3: Cross multiply
    113,919.12x = 157,200.72 × 68,588.40
  4. Step 4: Simplify right side
    113,919.12x = 10,782,145,863.65
  5. Step 5: Solve for x
    x = 10,782,145,863.65/113,919.12
  6. Step 6: Final answer
    x = 94,647.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.